Sunfinity™ Sunflower - Syngenta Flowers · (05/17) Master File: Sunfinity Brand Information Guide...
Transcript of Sunfinity™ Sunflower - Syngenta Flowers · (05/17) Master File: Sunfinity Brand Information Guide...
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© 2017 Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties. Please check with your state or local Extension Service to ensure registration status. Some or all of the varieties may be protected under one or more of the following: Plant Variety Protection, United States Plant Patents, Utility Patents, and/or Plant Breeders’ Rights and may not be propagated or reproduced without authorization. The trademarks displayed or otherwise used herein are the property of their respective owners.
(05/17) Master File: Sunfinity Brand Information Guide
Sunfinity™ Sunflower Culture Guide
Plug Production GuideGERMINATIONGermination time: 5–6 days
Media temperature: 68–72 °F (20–22 °C)
Chamber: Optional
Light: Not required
Seed cover: Cover seed with a thin layer of media or coarse-grade vermiculite
Moisture level: 4 (wet) until germination is complete
Tray size: 128- to 50-cell plug tray, 72-cell recommended
Seeds per cell: 1
YOUNG PLANT PRODUCTIONTEMPERATURE:
Day: 65–68 °F (18–20 °C)
Night: 65–68 °F (18–20 °C)
LIGHTING:
Recommended day length: Long days
Light intensity: 3,500–4,500 foot candles, (700–900 micro mols)
Day length response: Facultative long day
Daily light integral: 12–16 mols/day
Media pH: 5.5–5.8
Media EC: 1.0–1.5 mS/cm
Fertilizer: 75–100 ppm Nitrogen
Plant growth regulators (PGRs): Bonzi® (paclobutrazol) sprench at 2–3 ppm within 48 hours of sowing (3–5 quarts per 100 sq. ft.).
Plug time: 4 weeks in a 72-cell plug tray
PLUG QUALITY AT FINISHPlug height: 3–4” tall
Number of leaves: Minimum of 4 fully expanded leaves (2 nodes)
Root mass: Plugs should be pullable; approximately 80% root mass
Foliage color: Dark green
Fungicide treatment: Recommended, preventive Subdue®/Heritage® fungicide
SCHEDULE 2.5 qt, trade gallon 12–14” Patio Container
Lat. CitesPlug time
Sow Date Weeks
Plug Ship/Transplant
Weeks
Finish time
Est.Retail Weeks
Sow Date Weeks
Plug Ship/Transplant
Weeks
Finish time
Est. Retail Weeks
25° Miami, FL 5 wks.Week 6–30
Week 11–35
7 wks.Week 18–42
Week 5–29
Week 10–34
8 wks.Week 18–42
30° Jacksonville, FL; Houston, TX 5 wks.Week 8–28
Week 13–33
7 wks.Week 20–40
Week 7–27
Week 12–34
8 wks.Week 20–40
35°Albuquerque, NM; Charlotte, NC; Los Angeles, CA
5 wks.Week 10–26
Week 15–31
7 wks.Week 22–38
Week 9–25
Week 14–30
8 wks.Week 22–38
40°Columbus, OH; Denver, CO; Provo, UT; Philadelphia, PA
5 wks.Week 11–25
Week 16–30
8 wks.Week 24–38
Week 10–24
Week 15–29
9 wks.Week 24–38
42.5°Boston, MA; Grand Rapids, MI; Grants Pass, OR
5 wks.Week 11–25
Week 16–30
8 wks.Week 24–38
Week 10–24
Week 15–29
9 wks.Week 24–38
45°Minneapolis, MN; Ottawa, ON; Portland, OR
5 wks.Week 11–25
Week 16–30
8 wks.Week 24–38
Week 10–24
Week 15–29
9 wks.Week 24–38
50° Vancouver, BC 5 wks.Week 11–23
Week 16–28
8 wks.Week 24–36
Week 10–22
Week 15–27
9 wks.Week 24–36
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ILLUSTRATED EXAMPLES OF EACH STAGE
Stage 1 Stage 2 Stage 3
Stage 4 - Plug Tray Stage 4 - Single plug, side view Stage 4 - Single plug, top view
CROP PROTOCOLStage 1 Stage 2 Stage 3 Stage 4
Days 1 2 3 4 5 6 7 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36
Crop ProfileSowing, light vermiculite covering
Radicle emergance
Cotelydon Expansion
Plug Bulking
Plug Finishing
Shipping
Temperature D/N Settings
68–72 °F 65–68 °F
Light Supplemental Lighting > 14 hours / long day treatment required
Humidity 90% < 70% < 50%
Moisture Level 4 4–3 4–2
pH 5.5–5.8
EC 0.5–0.75 0.75–1.0 1.0–1.5
PGRBonzi Drench
2 ppmB-Nine® at 2,500–5,000 ppm if needed prior
to shipping
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Finish Culture GuideTall indeterminate sunflower bred for branching, multiple flowers and large garden habit. Best grown in large premium containers and spaced during production.
Container size: 2.5–3 quart (6- to 8-inch pots), 1.5 gallon and larger patio containers
Habit: Upright
GARDEN SPECIFICATIONS
Garden height: 36–48”
Garden width: 24–36”
Light: Full sun
USDA Hardiness Zone: 11
AHS Heat zone: 12–1
Product use: Beds and large containers
FINISHING
TEMPERATURE:
Day: 70–75 °F (21–24 °C)
Night: 65–68 °F (18–20 °C)
Average daily temperature: 68–75 °F (20–24 °C)
LIGHTING:
Recommended day length: If Sunfinity plugs were propagated under long days (>13 hours) for 4 weeks then finish photoperiod is not critical. If plugs were not propagated under long days then >13 hours or 4-hour night interruption is highly recommended to speed flowering (see Figure 1).
Light intensity: 3,500–4,500 foot candles (700–900 micro mols)
Day length response: Facultative long day
Daily light integral: 12–20 mols/day
Media pH: 5.5–6.0
Media EC: 1.2–1.75 mS/cm (saturated media extract)
Fertilizer: 150–200 ppm Nitrogen
Pinching: Required to improve branching and control vigor. After 6–7 nodes develop on the stem, pinch shoot tips leaving 4 nodes. The nodes of Sunfinity are opposite so a pinch to 4 nodes would leave 8 leaves. Do not pinch too early to avoid issues with uneven branching. This is a hard pinch — similar to how poinsettias are traditionally pinched (see Figure 2 more information on pinching Sunfinity).
Plant growth regulators (PGRs): Apply 2–3 ppm Bonzi® (paclobutrazol) drench 1–2 weeks after pinching; 2–3 ppm drench at first sign of visible buds; 2 ppm drench when flowers start cracking color to hold for finish. Higher rates may be necessary under high light and temperature conditions.
Pests: Aphid, spider mites, thrips, whitefly, caterpillars
Diseases: Botrytis, Pythium, Rhizoctonia, Powdery Mildew, Downy Mildew, Rust
TECH TIPS:
• Facultative long-day plant. Crop time is 2–4 weeks longer if starting with plugs propagated under short days versus long days (see Figure 1). For earliest flowering, provide long days, high light levels, and warm temperature.
• Preventive fungicide applications for Powdery Mildew and Downy Mildew are recommended, especially in high humidity environments. Palladium®, Micora® and Segovis® fungicides have all been effective at suppressing pathogens.
• Plants grown outside can attract chewing insects. Preventive insecticides, such as Mainspring® and Flagship® are effective. Avid® insecticide is also recommended for spider mite control when grown in warm, dry conditions. Avid also has the added benefit of caterpillar and whitefly control.
SCHEDULING
Container size
Crop time after transplant (wks)
@ 68 °F ADT*Plants per pot
2.5- to 3-quart pots (6- to 8-inch pots, trade gallon)
7–8 1
1.5- to 2.5-gallon pots (10- to 12-inch pots)
7–8 1–2
3.0-gallon and larger (14-inch pots and larger)
8–9 2–3
*Estimated finish crop time is from transplant of a four week old 72-cell plug tray, propagated under long days, and finished at an average daily temperature (ADT) of 68 °F (20 °C). Crop time is one week faster at an ADT of 73 °F (23 °C) versus 68 °F (20 °C).
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11.5 weeks 11.5 weeks
9.5 weeks
10 weeks
8 weeks
7.5 weeks 7.5 weeks
8 weeks
5
6
7
8
9
10
11
12
10.5 12.5 13.5 14.5Finish Photoperiod (hours)
Fini
sh c
rop
time
(wee
ks)
Finish Photoperiod (hours)
Effect of Propagation and Finish Photoperiod on Finish Time
Container: 2.5 qt. Average daily temperature: 67 °F (19.4 °C) Daily light integral: 10.3 mols/day
No Pinch = One Stem/One Flower at First Flush
Pinched to 2 Nodes = 4 Branches/Flowers at First Flush
Pinched to 4 Nodes = 8 Branches/Flowers at First Flush
Effect of Pinching on BranchingAll plants were grown under the same conditions and transplanted
and pinched (where applicable) at the same time.
Figure 1
Figure 2
Short Day Propagation
Long Day Propagation
Source: August–December 2016, Gilroy, CA
Source: March–May 2017, Gilroy, CA
Download Sunfinity video culture at syngentaflowers-us.com/sunfinity